Title

New Development of Ultra-High-Performance Concrete (UHPC)

Abstract

Ultra-high-performance concrete (UHPC) is a type of cement-based composite for new construction and/or restoration of existing structures to extend service life. UHPC features superior workability, mechanical properties, and durability compared with conventional concrete. However, some challenges limit the wider application of UHPC, such as low workability for large-volume production, high autogenous shrinkage, insufficient flexural/tensile properties, and unpredictable durability after concrete cracking. Therefore, this paper reviews the state-of-the-art technologies for developing UHPC mixtures with improved properties. This review covers the following aspects: (1) the existing design methodologies; (2) the typical ingredients (e.g., binders, aggregates, chemical admixtures, and fibers) for preparation of UHPC and the underlying working principals; (3) the technologies for improving and controlling key properties (e.g., workability, autogenous shrinkage, compressive performance, tensile/flexural properties, and durability); and (4) the representative successful applications. This review is expected to advance the fundamental knowledge of UHPC and promote further research and applications of UHPC.

Department(s)

Civil, Architectural and Environmental Engineering

Comments

This paper is supported by National Science Foundation under award: CMMI 2046407 and New Jersey Department of Transportation: Task Order 349 – Bridge Resource Program (2017-2020), contract ID number: 17-60139, federal project number: D00S237.

Keywords and Phrases

Autogenous Shrinkage; Design Methodologies; Durability; Fresh Properties; Mechanical Properties; Structural Applications; Ultra-High-Performance Concrete (UHPC)

International Standard Serial Number (ISSN)

1359-8368

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2021 Elsevier, All rights reserved.

Publication Date

01 Nov 2021

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